This is an RC-scale front/rear ridge rim set produced for KYOSHO Mini-Z AWD platforms, supplied by GPM as model DMZA601F/R+1.5. The rims use Delrin material and are specified with a 1.5mm offset and an 8.5mm width, intended as a direct wheel upgrade for Mini-Z AWD setups.
In practical terms these rims let builders / tuners change track characteristics without altering suspension geometry. The Delrin construction offers dimensional stability and low friction where the tyre bead seats, making them suitable for thin-profile tyres and fine steering adjustments often used on short circuits and indoor layouts.
Installation is standard for Mini-Z AWD wheel hubs: remove the stock rim, fit the Delrin rim onto the wheel hex or adaptor used by your MR-03 AWD series, and secure per your usual wheel retention method. Check tyre seating and clearance when mixing widths and offsets, and re-check wheel balance after tyre mounting.
Tuning notes: a 1.5mm offset shifts track width slightly relative to stock, which can affect turn-in and lateral grip; use these rims when adjusting front/rear balance and tyre pairing during setup sessions.
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